Base | Representation |
---|---|
bin | 11001011100101… |
… | …11101011001001 |
3 | 112212201000111121 |
4 | 30232113223021 |
5 | 414122412220 |
6 | 33103355241 |
7 | 5201366020 |
oct | 1456275311 |
9 | 485630447 |
10 | 213482185 |
11 | aa561364 |
12 | 5b5b2b21 |
13 | 352c7b27 |
14 | 204d18b7 |
15 | 13b1deaa |
hex | cb97ac9 |
213482185 has 32 divisors (see below), whose sum is σ = 298577664. Its totient is φ = 143520000.
The previous prime is 213482183. The next prime is 213482201. The reversal of 213482185 is 581284312.
It is a happy number.
It is not a de Polignac number, because 213482185 - 21 = 213482183 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 213482185.
It is not an unprimeable number, because it can be changed into a prime (213482183) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 462855 + ... + 463315.
It is an arithmetic number, because the mean of its divisors is an integer number (9330552).
Almost surely, 2213482185 is an apocalyptic number.
It is an amenable number.
213482185 is a deficient number, since it is larger than the sum of its proper divisors (85095479).
213482185 is a wasteful number, since it uses less digits than its factorization.
213482185 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 705.
The product of its digits is 15360, while the sum is 34.
The square root of 213482185 is about 14611.0295667349. The cubic root of 213482185 is about 597.6595723491.
The spelling of 213482185 in words is "two hundred thirteen million, four hundred eighty-two thousand, one hundred eighty-five".
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